Motor sled



July 7, 1925. v1,545,264

P. LOGAN MOTOR sLED Filed Sept. 11. 1924 'lvllllllllll4 'Illlll' noentoz PeerlIqycLu 35% I hib HOW% Patented July Y7, 1925.

UNITED STATES PATEN PETER reenter cAriniviEr Grrr, ILL'INors. f 1 1;

MOTOR stan? Application filed September 11, 1924. Serial No. 737,044. l

andrear axles of the vehicle to replace the customary wheels, and to provide means` for propelling the rear axle and its runners for swiftly moving the vehicle across a snowy or icy road surface.

Another object of the invention is the provision of a pair of sleigh runners adapted to .be attached to the rear axle of a motor vehicle, which have longitudinal slots allowing the passage of a drive chain guided over' a sprocket wheel on the motor driven rear axle and equipped with road engaging prongs.

A further object of the invention is the provision of a pair of runners carrying a housing in which a sprocket wheel on the rear axle of the vehicle is located, and which carries. two guide sprocket wheels while a chain is guided over the sprocket wheels equipped with road engaging prongs passing through slots in the housing to firmly engage the road and propel the vehicle under the action of its motor.

It is also an object of the present invention to provide the front axle of a motor vehicle with runners replacingv the wheels and allowing a steering of the vehicle in a convenient manner by the steering wheel while a braking of the propulsion chain on the rear is effected by av customary brake drum.

These and other objects and advantages of my invention will become more fully known as the description thereof proceeds, and will then be specifically pointed out in the appended claim.

In the accompanying drawing, forming a material part of this disclosure Figure 1 is a side elevation of an automobile equipped with sleigh runners constructed in accordance with the present invention.

Figure 2y is a top plan view of an automobile frame equipped with sleigh runners constructed according to the invention.

In the drawing, 10 designates a chass1s or automobile body equipped with the customary foot-board 11, front mud guards 12, rear mud guards 13 and steeringV wheel 14.

The chassis is supported by the customary frame 15 carrying the `rear axle 16 and front .axle 17.

The front wheels on axle 17 are replaced by the runners 18, and thesteering is ef fected by means of the steering wheel 14, post 19 and movable steering frame 20, in the usual manner.

Ihe rear wheels are replaced by a pair of sleigh runners generally designated 21 com- A "1,545,264- T OFFICE.

prising casings 22 in which sprocket wheels 23 are located, keyed to the rear drive shaft to receivepower from the motor in the well known manner used to drive the rear wheels of a motor car. The runners 21 are rprovided with rupstanding ears 24 in which the shafts 25 of sprocket or chain wheels 26 are i journalled. A drive chain 27 is guided over part of sprocket wheel 23 and of sprocketv wheels 26 and forms a caterpillar traction tread underneath the sleigh runners 21 which allow the passage of the chain through elongated openings 28 in their bodies. The chain is equipped with a plurality of snow and ice engaging prongs 29 suitably spaced apart on said chain to move the automobile forward by their successive engagement with the road during the rotation of sprocket wheel 23.

A suitable brake drum 3() is provided to brake the caterpillar traction chainonl the downward grade on steep hills.

It will be clear rthat while the sleigh runners are here shown as an example attached to apassenger' car, they may also be attached to any other motor vehicle as for instance motor trucks or the like with such changes as fall within the scope of the appended claims without departing from the spirit of the present invention.

I-Iaving thus described my invention, what I claim as new anddesire to secure by Letters Patent, is

The combination with a motor vehicle having a rear axle, of runners pivotally attached to said axle, each of said runners being composed of a symmetrical casting-presenting a Hat levellower surface having upwardly curved ends, and containing an open elongated slot, raised transverse lugs on the upper surface, spaced side plates on the runners extending between the lugs, a circular Casing supported 011. said plates centrally of the runner, all of said elements being of integral construction, a sprocket gear Xed. on the axle to rotate Within the casng 5 sprocket pnons mounted intermediate each lug, a chain trained over said gear and` pnons, and spurs carried by alternate links of said chain, said chain ancl spurs projecting through the mentioned slot in said runner..

In witness Whereaf. I have afxed my Sgnature;

PETER LOGAN. 

